[path_provider] Switch to new analysis options

packages/path_provider/path_provider/example/integration_test/path_provider_test.dart

@@ -4,8 +4,6 @@
 
 // @dart=2.9
 
-import 'dart:async';
-
 import 'dart:io';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:path_provider/path_provider.dart';
@@ -55,7 +53,7 @@ void main() {
       expect(result, throwsA(isInstanceOf<UnsupportedError>()));
     } else if (Platform.isAndroid) {
       final List<Directory> directories = await getExternalCacheDirectories();
-      for (Directory result in directories) {
+      for (final Directory result in directories) {
         _verifySampleFile(result, 'externalCache');
       }
     }
@@ -72,7 +70,7 @@ void main() {
     StorageDirectory.movies,
   ];
 
-  for (StorageDirectory type in _allDirs) {
+  for (final StorageDirectory type in _allDirs) {
     test('getExternalStorageDirectories (type: $type)', () async {
       if (Platform.isIOS) {
         final Future<List<Directory>> result =
@@ -81,7 +79,7 @@ void main() {
       } else if (Platform.isAndroid) {
         final List<Directory> directories =
             await getExternalStorageDirectories(type: type);
-        for (Directory result in directories) {
+        for (final Directory result in directories) {
           _verifySampleFile(result, '$type');
         }
       }

packages/path_provider/path_provider/example/lib/main.dart

@@ -4,7 +4,6 @@
 
 // ignore_for_file: public_member_api_docs
 
-import 'dart:async';
 import 'dart:io';
 
 import 'package:flutter/material.dart';
@@ -22,13 +21,13 @@ class MyApp extends StatelessWidget {
       theme: ThemeData(
         primarySwatch: Colors.blue,
       ),
-      home: MyHomePage(title: 'Path Provider'),
+      home: const MyHomePage(title: 'Path Provider'),
     );
   }
 }
 
 class MyHomePage extends StatefulWidget {
-  MyHomePage({Key? key, required this.title}) : super(key: key);
+  const MyHomePage({Key? key, required this.title}) : super(key: key);
   final String title;
 
   @override
@@ -166,8 +165,9 @@ class _MyHomePageState extends State<MyHomePage> {
             Padding(
               padding: const EdgeInsets.all(16.0),
               child: ElevatedButton(
-                child: Text(
-                    '${Platform.isIOS ? "External directories are unavailable " "on iOS" : "Get External Storage Directory"}'),
+                child: Text(Platform.isIOS
+                    ? 'External directories are unavailable on iOS'
+                    : 'Get External Storage Directory'),
                 onPressed:
                     Platform.isIOS ? null : _requestExternalStorageDirectory,
               ),
@@ -178,8 +178,9 @@ class _MyHomePageState extends State<MyHomePage> {
               Padding(
                 padding: const EdgeInsets.all(16.0),
                 child: ElevatedButton(
-                  child: Text(
-                      '${Platform.isIOS ? "External directories are unavailable " "on iOS" : "Get External Storage Directories"}'),
+                  child: Text(Platform.isIOS
+                      ? 'External directories are unavailable on iOS'
+                      : 'Get External Storage Directories'),
                   onPressed: Platform.isIOS
                       ? null
                       : () {
@@ -197,8 +198,9 @@ class _MyHomePageState extends State<MyHomePage> {
               Padding(
                 padding: const EdgeInsets.all(16.0),
                 child: ElevatedButton(
-                  child: Text(
-                      '${Platform.isIOS ? "External directories are unavailable " "on iOS" : "Get External Cache Directories"}'),
+                  child: Text(Platform.isIOS
+                      ? 'External directories are unavailable on iOS'
+                      : 'Get External Cache Directories'),
                   onPressed:
                       Platform.isIOS ? null : _requestExternalCacheDirectories,
                 ),

packages/path_provider/path_provider/example/test_driver/integration_test.dart

@@ -4,7 +4,6 @@
 
 // @dart=2.9
 
-import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 import 'package:flutter_driver/flutter_driver.dart';
@@ -14,6 +13,6 @@ Future<void> main() async {
   final String data =
       await driver.requestData(null, timeout: const Duration(minutes: 1));
   await driver.close();
-  final Map<String, dynamic> result = jsonDecode(data);
+  final Map<String, dynamic> result = jsonDecode(data) as Map<String, dynamic>;
   exit(result['result'] == 'true' ? 0 : 1);
 }

packages/path_provider/path_provider/lib/path_provider.dart

@@ -2,13 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import 'dart:async';
 import 'dart:io' show Directory, Platform;
 
 import 'package:flutter/foundation.dart' show kIsWeb, visibleForTesting;
 import 'package:path_provider_linux/path_provider_linux.dart';
 import 'package:path_provider_windows/path_provider_windows.dart';
 import 'package:path_provider_platform_interface/path_provider_platform_interface.dart';
+// ignore: implementation_imports
 import 'package:path_provider_platform_interface/src/method_channel_path_provider.dart';
 
 export 'package:path_provider_platform_interface/path_provider_platform_interface.dart'
@@ -36,7 +36,7 @@ class MissingPlatformDirectoryException implements Exception {
 
   @override
   String toString() {
-    String detailsAddition = details == null ? '' : ': $details';
+    final String detailsAddition = details == null ? '' : ': $details';
     return 'MissingPlatformDirectoryException($message)$detailsAddition';
   }
 }

packages/path_provider/path_provider/test/path_provider_test.dart

@@ -3,7 +3,6 @@
 // found in the LICENSE file.
 
 import 'dart:io' show Directory;
-import 'dart:async';
 
 import 'package:flutter_test/flutter_test.dart';
 import 'package:path_provider/path_provider.dart';
@@ -27,44 +26,44 @@ void main() {
     });
 
     test('getTemporaryDirectory', () async {
-      Directory result = await getTemporaryDirectory();
+      final Directory result = await getTemporaryDirectory();
       expect(result.path, kTemporaryPath);
     });
 
     test('getApplicationSupportDirectory', () async {
-      Directory result = await getApplicationSupportDirectory();
+      final Directory result = await getApplicationSupportDirectory();
       expect(result.path, kApplicationSupportPath);
     });
 
     test('getLibraryDirectory', () async {
-      Directory result = await getLibraryDirectory();
+      final Directory result = await getLibraryDirectory();
       expect(result.path, kLibraryPath);
     });
 
     test('getApplicationDocumentsDirectory', () async {
-      Directory result = await getApplicationDocumentsDirectory();
+      final Directory result = await getApplicationDocumentsDirectory();
       expect(result.path, kApplicationDocumentsPath);
     });
 
     test('getExternalStorageDirectory', () async {
-      Directory? result = await getExternalStorageDirectory();
+      final Directory? result = await getExternalStorageDirectory();
       expect(result?.path, kExternalStoragePath);
     });
 
     test('getExternalCacheDirectories', () async {
-      List<Directory>? result = await getExternalCacheDirectories();
+      final List<Directory>? result = await getExternalCacheDirectories();
       expect(result?.length, 1);
       expect(result?.first.path, kExternalCachePath);
     });
 
     test('getExternalStorageDirectories', () async {
-      List<Directory>? result = await getExternalStorageDirectories();
+      final List<Directory>? result = await getExternalStorageDirectories();
       expect(result?.length, 1);
       expect(result?.first.path, kExternalStoragePath);
     });
 
     test('getDownloadsDirectory', () async {
-      Directory? result = await getDownloadsDirectory();
+      final Directory? result = await getDownloadsDirectory();
       expect(result?.path, kDownloadsPath);
     });
   });
@@ -95,22 +94,22 @@ void main() {
     });
 
     test('getExternalStorageDirectory passes null through', () async {
-      Directory? result = await getExternalStorageDirectory();
+      final Directory? result = await getExternalStorageDirectory();
       expect(result, isNull);
     });
 
     test('getExternalCacheDirectories passes null through', () async {
-      List<Directory>? result = await getExternalCacheDirectories();
+      final List<Directory>? result = await getExternalCacheDirectories();
       expect(result, isNull);
     });
 
     test('getExternalStorageDirectories passes null through', () async {
-      List<Directory>? result = await getExternalStorageDirectories();
+      final List<Directory>? result = await getExternalStorageDirectories();
       expect(result, isNull);
     });
 
     test('getDownloadsDirectory passses null through', () async {
-      Directory? result = await getDownloadsDirectory();
+      final Directory? result = await getDownloadsDirectory();
       expect(result, isNull);
     });
   });
@@ -119,36 +118,44 @@ void main() {
 class FakePathProviderPlatform extends Fake
     with MockPlatformInterfaceMixin
     implements PathProviderPlatform {
+  @override
   Future<String?> getTemporaryPath() async {
     return kTemporaryPath;
   }
 
+  @override
   Future<String?> getApplicationSupportPath() async {
     return kApplicationSupportPath;
   }
 
+  @override
   Future<String?> getLibraryPath() async {
     return kLibraryPath;
   }
 
+  @override
   Future<String?> getApplicationDocumentsPath() async {
     return kApplicationDocumentsPath;
   }
 
+  @override
   Future<String?> getExternalStoragePath() async {
     return kExternalStoragePath;
   }
 
+  @override
   Future<List<String>?> getExternalCachePaths() async {
     return <String>[kExternalCachePath];
   }
 
+  @override
   Future<List<String>?> getExternalStoragePaths({
     StorageDirectory? type,
   }) async {
     return <String>[kExternalStoragePath];
   }
 
+  @override
   Future<String?> getDownloadsPath() async {
     return kDownloadsPath;
   }
@@ -157,36 +164,44 @@ class FakePathProviderPlatform extends Fake
 class AllNullFakePathProviderPlatform extends Fake
     with MockPlatformInterfaceMixin
     implements PathProviderPlatform {
+  @override
   Future<String?> getTemporaryPath() async {
     return null;
   }
 
+  @override
   Future<String?> getApplicationSupportPath() async {
     return null;
   }
 
+  @override
   Future<String?> getLibraryPath() async {
     return null;
   }
 
+  @override
   Future<String?> getApplicationDocumentsPath() async {
     return null;
   }
 
+  @override
   Future<String?> getExternalStoragePath() async {
     return null;
   }
 
+  @override
   Future<List<String>?> getExternalCachePaths() async {
     return null;
   }
 
+  @override
   Future<List<String>?> getExternalStoragePaths({
     StorageDirectory? type,
   }) async {
     return null;
   }
 
+  @override
   Future<String?> getDownloadsPath() async {
     return null;
   }

packages/path_provider/path_provider_linux/example/lib/main.dart

@@ -3,8 +3,6 @@
 // found in the LICENSE file.
 
 import 'package:flutter/material.dart';
-import 'dart:async';
-
 import 'package:flutter/services.dart';
 import 'package:path_provider_linux/path_provider_linux.dart';
 
@@ -67,7 +65,9 @@ class _MyAppState extends State<MyApp> {
     // If the widget was removed from the tree while the asynchronous platform
     // message was in flight, we want to discard the reply rather than calling
     // setState to update our non-existent appearance.
-    if (!mounted) return;
+    if (!mounted) {
+      return;
+    }
 
     setState(() {
       _tempDirectory = tempDirectory;
@@ -86,7 +86,7 @@ class _MyAppState extends State<MyApp> {
         ),
         body: Center(
           child: Column(
-            children: [
+            children: <Widget>[
               Text('Temp Directory: $_tempDirectory\n'),
               Text('Documents Directory: $_documentsDirectory\n'),
               Text('Downloads Directory: $_downloadsDirectory\n'),

packages/path_provider/path_provider_linux/example/test/widget_test.dart

@@ -9,8 +9,6 @@
 // gestures. You can also use WidgetTester to find child widgets in the widget
 // tree, read text, and verify that the values of widget properties are correct.
 
-import 'dart:async';
-
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
@@ -19,14 +17,14 @@ import 'package:pathproviderexample/main.dart';
 void main() {
   group('Test linux path provider example', () {
     setUpAll(() async {
-      await WidgetsFlutterBinding.ensureInitialized();
+      WidgetsFlutterBinding.ensureInitialized();
     });
 
     testWidgets('Finds tmp directory', (WidgetTester tester) async {
       // Build our app and trigger a frame.
       await tester.runAsync(() async {
         await tester.pumpWidget(MyApp());
-        await Future.delayed(Duration(milliseconds: 20));
+        await Future<void>.delayed(const Duration(milliseconds: 20));
         await tester.pump();
 
         // Verify that temporary directory is retrieved.
@@ -44,7 +42,7 @@ void main() {
       // Build our app and trigger a frame.
       await tester.runAsync(() async {
         await tester.pumpWidget(MyApp());
-        await Future.delayed(Duration(milliseconds: 20));
+        await Future<void>.delayed(const Duration(milliseconds: 20));
         await tester.pump();
 
         // Verify that documents directory is retrieved.
@@ -62,7 +60,7 @@ void main() {
       // Build our app and trigger a frame.
       await tester.runAsync(() async {
         await tester.pumpWidget(MyApp());
-        await Future.delayed(Duration(milliseconds: 20));
+        await Future<void>.delayed(const Duration(milliseconds: 20));
         await tester.pump();
 
         // Verify that downloads directory is retrieved.
@@ -81,7 +79,7 @@ void main() {
       // Build our app and trigger a frame.
       await tester.runAsync(() async {
         await tester.pumpWidget(MyApp());
-        await Future.delayed(Duration(milliseconds: 20));
+        await Future<void>.delayed(const Duration(milliseconds: 20));
         await tester.pump();
 
         // Verify that Application Support Directory is retrieved.